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AEG MEF004 Industrial Grade Frequency Converter
- Product Introduction: This is a 0.75 kW 3-phase 380 VAC small-power industrial grade frequency converter of AEG, specially designed for the speed control of small-power three-phase asynchronous motors in industrial automation systems. It adopts vector control technology, with high speed control precision, good dynamic performance and comprehensive protection functions, realizing the stepless speed regulation of the motor, energy saving and consumption reduction, and reducing the mechanical impact of the motor start and stop, and is a core speed control component for small-power motor speed control in industrial control systems.
- Technical Specifications:
- Rated Power: 0.75 kW; Input Voltage: 3-phase 380 VAC ±10%, 50/60 Hz.
- Output Voltage: 3-phase 0-380 VAC (PWM modulation); Output Current: 2.5 A (rated), 5 A (1-minute overload).
- Control Mode: V/F control, open-loop vector control (SV-PWM), torque control (optional), speed control precision ±0.5% of rated speed.
- Frequency Range: 0.1-400 Hz, frequency resolution 0.01 Hz (digital), 0.1 Hz (analog).
- Start Torque: 150% rated torque at 0.5 Hz (open-loop vector control), 200% rated torque at 5 Hz.
- Acceleration/Deceleration Time: 0.1-3600 s (adjustable, linear/S-curve).
Detailed content
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- Input Interfaces: 2×AI (4-20 mA/0-10 VDC), 6×DI (24 VDC), 2×PI (pulse input, 0-100 kHz).
- Output Interfaces: 2×AO (4-20 mA/0-10 VDC), 3×DO (24 VDC/1 A), 1×Relay output (250 VAC/5 A).
- Communication Interface: 1×RS-485 (Modbus RTU), support multi-machine networking and upper-level control.
- Protection Functions: Overvoltage (OV), undervoltage (UV), overcurrent (OC), overload (OL), motor overheating, phase loss, short circuit, ground fault, stall protection.
- Operating Temperature: -10°C to +50°C; Derating: 50% load at 50°C, linear derating from 40°C.
- Storage Temperature: -40°C to +70°C; Humidity: 5% to 90% (non-condensing); Protection Rating: IP20.
- Cooling Method: Forced air cooling (internal fan); Dimensions: 100mm × 160mm × 140mm (W×H×D); Mounting: Standard 35mm DIN rail.
- Programming: Keypad programming, PC software programming (Windows compatible), parameter copy function (via keypad).
- Functional Features:
- Open-loop vector control (SV-PWM) technology with ±0.5% high speed control precision and 150% rated torque at 0.5 Hz high start torque realizes the precise speed control and heavy load start of the small-power motor, meeting the high-precision speed control requirements of industrial field equipment (such as conveyors, fans, pumps).
- 0.1-400 Hz wide frequency range and 0.01 Hz high frequency resolution realize the stepless speed regulation of the motor, adapting to different speed control requirements of industrial equipment, and the adjustable acceleration/deceleration time (linear/S-curve) reduces the mechanical impact of the motor start and stop, prolonging the service life of the motor and mechanical transmission components.
- Comprehensive protection functions (overvoltage, undervoltage, overcurrent, overload, motor overheating, etc.) effectively protect the frequency converter and the controlled motor from damage caused by electrical faults and abnormal working conditions in the industrial field, and the stall protection function prevents the motor from burning out due to long-term stall.
- Rich input/output interfaces (AI/DI/PI/AO/DO/Relay) realize the seamless connection with PLC, HMI and other industrial control systems, support analog signal (4-20 mA/0-10 VDC) and pulse signal (0-100 kHz) speed control, and the analog output realizes the real-time feedback of motor speed and current.
- RS-485 Modbus RTU communication interface supports multi-machine networking (up to 32 units) and upper-level SCADA/DCS control, realizing the centralized speed control and monitoring of multiple motors, and improving the automation level of the production line.
- V/F control and open-loop vector control optional adapt to different control requirements (general speed control/high-precision speed control), the torque control function (optional) realizes the precise torque control of the motor, suitable for the equipment with constant torque load (such as mixers, extruders).
- Energy-saving control function (automatic V/F optimization) automatically adjusts the output voltage according to the motor load, reducing the no-load and light-load power consumption of the motor, realizing energy saving and consumption reduction, and the energy saving rate can reach 20-50% for fans and pumps with variable load.
- Keypad and PC software dual programming methods, with parameter copy function, realize the fast setting and batch copy of the frequency converter parameters, reducing the on-site debugging time, and the keypad with digital display realizes the real-time display of motor speed, current, voltage and fault information.
- Forced air cooling with internal fan ensures the stable operation of the frequency converter at full load, the compact DIN rail mounting design saves the installation space of the industrial control cabinet, and the IP20 protection rating is suitable for the closed installation environment of the control cabinet.
- The frequency converter is specially designed for small-power three-phase asynchronous motors (0.75 kW), with perfect matching of motor parameters, no additional parameter adjustment required for standard motors, plug-and-play, and strong compatibility with various brand small-power three-phase asynchronous motors.
- Application Scenarios: Widely used for the speed control of 0.75 kW 3-phase 380 VAC small-power three-phase asynchronous motors in industrial fields such as factory automation, building automation, water treatment, food and beverage and packaging machinery. It is the core speed control component for the stepless speed regulation of fans, pumps, conveyors, mixers, small packaging machines and exhaust fans, and is suitable for all industrial occasions that require energy-saving speed control and precise speed regulation of small-power three-phase asynchronous motors.
